DServer:  *
  Device ID:  *
  Username:  * ID may consist of a-z, 0-9 and underscores, and must be less than 20 characters.
  Password:  * Password must not be less than 4 characters, and can not contain blank space.
  Re-type password:  *
  Security question:  * If you forget your password, you can get it through answering this question.
  Your answer:  *
  email:  * Forget the password, the security can obtain the password mail.
  send product modification info: yes   No